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����������������BRANCH : ELECTRICAL ENGINEERING�SEMESTER : 3RD �SUBJECT : CIRCUIT & NETWORK THEORY�

CHAPTER : 04 �TOPIC : NETWORK THEOREMS�FACULTY : ER A ACHARYA

Mayurbhanj School Of Engineering, Baripada

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CONTENTS

  • Star to Delta conversion
  • Delta to Star conversion
  • Superposition Theorem
  • Thevenin’s Theorem
  • Norton’s Theorem
  • Maximum Power Transfer Theorem

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STAR TO DELTA CONVERSION

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DELTA TO STAR CONVERSION�

 

 

 

Each resistor in the Y network is the product of the resistors in the two adjacent Δ branches, divided by the sum of the three Δ resistors.

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SUPERPOSITION THEOREM�

  • The superposition theorem states that for a linear system (notably including the subcategory of time-invariant linear systems) the response (voltage or current) in any branch of a bilateral linear circuit having more than one independent source equals the algebraic sum of the responses caused by each independent source.
  • Considering the current source only, the voltage source is short-circuited.

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SUPERPOSITION THEOREM

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THEVENIN’S THEOREM�

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THEVENIN’S THEOREM PROCEDURE�

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NORTON’S THEOREM�

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NORTON’S THEOREM PROCEDURE�

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MAXIMUM POWER TRANSFER THEOREM�

  • To obtain maximum external power from a source with a finite internal resistance, the resistance of the load must equal the resistance of the source as viewed from its output terminals.